Booking System Trafft <= 1.0.17 - Authenticated (Subscriber+) Stored Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Booking System Trafft plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `bookingWebsiteUrl` setting in all versions up to, and including, 1.0.17 due to a missing capability check on the `set_options` AJAX action when the plugin is operating in agency mode. The `trafftSetOptions()` handler verifies a nonce that is exposed to any authenticated user (it is printed inline on every admin page, including profile.php) but performs no capability check before calling `update_option('trafft_option', ['bookingWebsiteUrl' => ...])`. This setting is then used by `trafftAdminAssets()` to enqueue `<bookingWebsiteUrl>/embed.js` as a script on every front-end page that renders the booking shortcode. This makes it possible for authenticated attackers, with Subscriber-level access and above, to point the embed-script URL at an attacker-controlled origin and execute arbitrary JavaScript in the browser of every site visitor (including admins).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ameliabooking | Booking System Trafft | up to 1.0.17 | — | No fix listed | CNA |
- Booking System Trafft Vendorameliabooking Affected up to 1.0.17 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8791
- 2026-10-03 Alias added: GHSA-xr8c-xpp9-8m4h
References
Other 11
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e93060cf-2df3-4d45-a1f2-304f443d58bc?source=cve
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L139
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L139
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L155
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L155
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L176
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L176
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L325
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L325
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L354
- https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L354
More ameliabooking vulnerabilities
- TI-2026-04786 Authorization bypass in ameliabooking Booking for Appointments and Events Calendar… CVSS 3.1HIGH 8.8
- TI-2026-02524 Amelia Booking <= 9.1.2 - Authenticated (Customer+) Insecure Direct Object Reference to Arbitrary User Password Change CVSS 3.1HIGH 8.8
- TI-2025-11453 Booking for Appointments and Events Calendar – Amelia <= 1.2.35 - Unauthenticated SQL Injection via search CVSS 3.1HIGH 7.5
- TI-2026-20148 WordPress Amelia plugin <= 1.2.38 - Privilege Escalation vulnerability CVSS 3.1HIGH 7.2
- TI-2026-28461 WordPress Amelia plugin <= 2.1.1 - SQL Injection vulnerability CVSS 3.1HIGH 7.6
- TI-2026-20152 WordPress Amelia plugin <= 1.2.38 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-8791 · CVE Program
- CVE-2026-8791 · NVD
- FIRST EPSS
- GHSA-xr8c-xpp9-8m4h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences